Improvement in valves for hydrostatic elevators



H. l. REEDY.

Valves for Hydrostatio-Elevatqrs.

Patentedl Oct.V 6, 1'874.

the descent of the same.

UNITED STATES PATENT OFFICE.

HENRY J'. EEEDY, or oINoiNNATI, oHIo.

IMPROVEMENT IN VALVES FOR HYIDROSTATIC ELEVATORS.

Specification forming part of Letters Patent No. 155,675, dated October6, 1874 application led April 2, 1874.

To all whom it may concern: i

Be it known that I, HENRY J. REEDY, o Cincinnati, Hamilton county, Stateof Ohio, have` invented a certain new and useful Improvement in Valvesfor Governing the Flow of Water to and from Hydrostatio Elevators,- ofwhich the following is a specification:

invention relates to the construction and operation of valves forgoverning the inlet-pipe and outlet-pipe of hydrostatichoisting-machines and analogous uses; and my invention consists of acertain construction of valve for both inlet and outlet pipes, and inthe peculiar method of packing the same, by which a very cheapconstruction is arrived at, and an effective, durable valve pro vided,which, when closed, shall be .almost balanced, (being perfectly balancedwhen open,) so that it may be governed rapidly, and with accuracy andease.

The accompanying drawing is a vertical section of an apparatus embodyingmy invention. A in the drawing represents a supply-pipe from' thewater-works to the elevator. B represents the aperture through which theelevator is supplied, the same aperture serving as a discharge-aperturefrom the elevator, in

C is the dischargepipe from the aperture. The pipes A B C may be, asshown, all embraced in one casting, D. Two unfinished cylinders, E E',may be formed in the casting D, the cylinders being simply faced oftl atthe ends, for the attachment thereto of circular heads F G. The heads Gare fitted interiorly, in the manner shown, with leather seats H, andthe heads F have hydraulic packing as atstufng-box, through which thevalve-rods I pass. To the inner ends of the valvemfrods I the valves J Jare secured rigidly, and, if desirable, adjustably. The lower ends ofthe valves J J are faced olf truly, so as to seat with a close jointupon the leather, gum, or other suitable seats H; and the outerperipheries of each valve is turned off cylindrically and smoothly, sothat it may work snugly and with a tight joint in the hydraulic packingK, secured to the cylinders E E. Apertures L are made through the upperends of the valves, through which the water passes when the valve isopen, and by means of which Athe pressure is nearly balanced when thevalve is closed. Upon the upper ends of the valve-rods I elongated eyesM are formed, in which anti-friction rollers N are journaled, in themanner shown. Between these rollers a horizontal reciprocating bar, O,is tted, which is moved backward and forward by means of a rack, P, anda toothed wheel, R, or equivalent means. The bar O has double inclines aupon it, the operation of which, as the bar reciprocates, serves to openor close the valves, the operation being such that, when one valve hasbeen closed, (the other having been previously elosed,) both may remainso; or, by a continuation of the motion of the bar in the samedirection, the one previously closed may be opened.

By this means, when the valve J is closed by a motion of the bar O inthe direction of the arrow immediately upon the descent of the elevatorto the proper level, the elevator may again be raised immediately by acontinuation of the motion of the bar 0 in the same directio, thismotion serving to 'open the valve J.

The bar O may be operated bythe usual appliances customary in stoppingand starting mechanisms for hoisting-machines.

I claim- In combination with the cylinders E E', having seats H andcentral packing K, the hollow cylindrical valves J J f, connected andoperating substantially in the mannerrand for the purpose specified.

In testimony of which invention I hereunto' set my hand. 1

HENRY J. REEDY.

Witnesses:

FRANK MILLWARD, J. L. WARTMANN.

